Improvement in cutter-head



waited tatet pate-nt mitin.

yMILTON W. CLARK, OFaWORGESTER,MASSACHUSETTS, SSIGNR TO R. BALL & CO., OF SAME PLACE.

Letters Patent No. 102,222, dated April 26, 1870."

IMPROVEMENT IN CUTTER-HEAD.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern.:

Be it known that I, MrL'r.Y W. CLARK, of the city and county of Worcester and Commonwealth of Massachusetts, haveinveuted'certain new and useful Improvements in Sectional Cutter-Head for Woodworking Machinery; and I do hereby declare the following to be a full, clear, and exact de'sciptiou of the same, reference being had to the accompanying drawings forming part oflthis specification, in which- Figure l1 representsa front view of my improved sectional cutter-head;

Figure 2 represents a longitudinal central section of the same;

Figure 3 represents a transverse section on line A B, fig. i

Figure 4 represents` a transverse section on line C I), iig. 1; and

Figure 5 represents a view of one of the cutters.

To enable those skilled in the art to which my iu- 4vention belongs to make and' use the same, I will proceed to describe it more in detail.

My inventionY consists of a sectional cutter-head for wood-.working machines, composed of two orinore holding-sections mounted upon the driving-spindle, and constructed to receive and hold the cutters, as hereinafter explained.

In the drawings- The part marked Ais the driving-shaft, and B is the spindle, whereon are arranged the sections O C which hold the cutters D, said cutters being made in form as shown iufg. `5.-

The cuttersD may be made of any desired width, andthe holding-sections C O to co'espond in width to their respective cutters.

A collar, E, is shrunk onto the shaft A, to form the base for Supporting the sections C C', and channels or grooves, a, are formed across the side of said collar E, to Vallow space for the ends l of the cutters, which project beyondv the .end of the iirst section, C. The -groovesa are formed of such size that the ends b of the-cutters will not come iu contact with the collar E at any point.

The sections C C are made to t onto the spindle B in such a manner that theyV canlbe slipped oit and interchang'ed when desired, by simply removing the check-nut F.

v The sections C C are grooved out at one side, c, to receive the shank d of the cutter D.

The holding-'sections C C' and cutters D are arranged on the spindle as follows:

The rst holding-section, C, being placed in position, as shown, the cutters D, to fit that section, are

arranged with their shanks d in thel slots c, after which the next holding-section, O', is slipped onto thespindle B, so that its inner side will rester abut against th outer edge e of he critter D in section C.

The cutters are then arr. ged in the section- C in the same manner as inthe grst section, after which the fender and cutter-helder Gis placed ,On the spindle`B, and is clamped firmly against the edge of the cutter which is in the section C, by means of the check-uut F, which is screwed onto the endof the spindle B.

It will be seen that the cutters are held in position by their shanks being clamped between the sectional holders, the shanks being made a little wider than the slot-s c, so that their upper edges will project beyond the sides of the sections, 'as shown at m, whereby, when the holding-sections are forced together, the edges f of the shanks will be forced against the bottom ot' the slots c, and securely 'clamped therein.

To enable the cutters to be setl at right angles to each other, and, at the same time, lap by each other, as hereafter explained, the corners of the shanks are notched out, as shown at g', so as not to interfere with the edge b of the cutters iu'the next section, when in position as indicated in g. 1.

Semi-cylindrical grooves, I, are formed in the sections, forward of the cutting-edges of the critters D, to facilitate the clearing of the shavings. .l

rlhe cutters D are made a little wider than the sec-- tions C G, so that they will lap past each other, and thereby insure a clean cnt the whole width of the head.

It will alsobe observed that the head may he composed of sections and cutters of different widths, which can be interchanged, thereby enabling the operator, with a single series of sections and cutters, to cut a great variety of different formed moldings, and that, too, wit-hout leaving any burs or fins.

Then again, when the head is made up of several separate sections, the cutters can be arranged spirally around the spindle, thereby rendering the action of the machine more uniform and` steady vthan when the. cutters, for the whole width of the head, are brought into contact with the work at the saine time.

Thus, it will be seen that my improved sectional cutter-head is peculiarly adapted for use where a wide head is required, since any desired number of sections and cutters can be used, and arranged spirally, or otherwise, as desired.

NVhen it may be desired to reduce the width of a cutter-head, one or more sections, with their cutters, may be removed, and the fender slipped down, and the blank sections placed between the fender G and the check-nut F, t-o serve the purpose of collars.

Having described my improved sectional cutterhead,

What I claim therein as new and of my invention, and desire to secure by'Letters Patent, is

A sectional cutter-head for wood-working machines, having the holding-sections O G and cutters D, constructed and arranged upon the driving-spindle B,

-su bstantially as herein shown and set forth.

' MILTON W. CLARK. VVitneSSes.

Tues. DODGE, Guo. H. MILLER. 

